The DongGuan Merrock Industry Co., Ltd is professional manufacturer of floor surface grinding and polishing machine, diamond polishing pads, marble crystal powder and concrete curing agent! We have a number of excellent talents in Research, production, sales and technology consultant with professional skills, it already developed into a famous manufacturer in the surface grinding system field. Merrock is equipped with production and sales department for machine, chemical industry product and abrasive separately. Merrock mainly research and produce: Machine, Chemical industry, Abrasive and Hardware tools. We have strong advantage in the technology and research, and some of our products gain great advantage in china in the research and technology.